Analysis based on the total variation (total variation, TV) image restoration algorithm model behavior, TV model repair algorithm uses only anisotropic diffusion, TV model anisotropic diffusion only to the image edge direction, easy to introduce step effect in smooth areas. An improved image restoration algorithm, which combine both isotropic and anisotropic diffusion, use of regional difference in frequency enables the use of iterative equations different in different regions, effectively avoiding the staircase effect of the original algorithm introduced while smooth regions to improve iterative efficiency. Matlab environment simulation results show that the improved repair effect of the algorithm and the results were significantly better than the peak signal to noise ratio of the original algorithm

P149Improved_TV_restoration\gauss.m
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P149Improved_TV_restoration

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